The first of three phases of a project to develop a Comprehensive Integrated Cancer Information System (CICIS) consisted of a survey which was conducted through personal interviews with 402 Alabama health professionals to determine their sources of health information. Type of practice, location of practice, age, size of hospital, and specialty seem to influence source, as well as environment--here defined as rural, semi-urban, or urban. The findings show that medical literature is the most common source, both solicited and unsolicited. Other sources include talks with colleagues, local meetings, state meetings, national meetings, and continuing education courses. (JVP)